Modular Silencer Baffle Noise Attenuation
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Solution Overview
Problem
Gas turbine engines face significant noise issues due to the acoustical energy generated by compressor blades, which existing silencer baffles have not adequately addressed, leading to excess noise in air ducts.
Innovation Solution
A modular silencer baffle system comprising multiple baffle sections with mating interlock structures and sound absorption inserts, designed to be assembled within the air duct, utilizing a support structure and acoustic materials to absorb noise effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If existing silencer baffles are used in air ducts, then the structure is simple, but noise attenuation is insufficient
Solution Approach 1:
The silencer baffle is divided into multiple modular sections that can be coupled together using mating interlock structures. Each section contains sound absorption material and can be independently assembled, allowing the system to achieve high noise attenuation while maintaining manufacturing simplicity and ease of installation.
2Object-affected harmful factors
If modular baffle sections are coupled together, then noise attenuation is improved, but assembly complexity increases
Solution Approach 1:
The support rod is extracted as a separate component that passes through the modular baffle sections, providing structural support while allowing each section to be independently assembled and coupled together through mating interlock structures, simplifying the overall assembly process.
Solution Approach 2:
Multiple baffle sections are merged together through mating interlock structures to form a continuous silencer assembly, achieving high noise attenuation while maintaining ease of assembly through standardized coupling mechanisms.
3Object-affected harmful factors
If sound absorption material is added to baffle sections, then noise reduction is enhanced, but device complexity increases
Solution Approach 1:
Each modular baffle section is designed as a universal unit that combines structural support, sound absorption, and coupling capabilities. The standardized design allows the same basic module to be replicated and assembled in different configurations, reducing overall system complexity while achieving high noise attenuation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The modular silencer baffle system significantly reduces noise levels within the air duct by utilizing sound absorption materials and a supportive structure, enhancing the aerodynamic shape and reducing load on duct panels, thereby improving noise attenuation.
Implementation Method 1
utilizing sound absorption materials and a supportive structure, enhancing the aerodynamic shape and reducing load on duct panels, thereby improving noise attenuation
Data Source
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AI summary
A system includes a silencer baffle 28 which mounts in a fluid conduit 27along a fluid flow path. The silencer baffle includes a first baffle section 36 having first and second baffle portions which couple together laterally about a support structure extending between opposite sides of the fluid conduit.